Claude designs quantum circuits with 17x fewer gates and 12% more qubits, beating human records
rohanpaul_ai · x · 2026-10-17
Anthropic's STEM Fellows Program reports that Claude Mythos 5, given plain-language instructions, designed quantum circuits that beat the best published ones — sometimes by an order of magnitude.
- Harvard physics researcher Andi Gu paired with Anthropic staff to test whether Claude can do real research
- Workflow: Claude wrote circuit designs as code, an evaluator scored them, and Claude iterated until it beat human-designed records in most of 8 tasks
- Strongest result: Claude proved new mathematical identities with formal proofs, making an elusive classical math shortcut work on quantum hardware for the first time — 17x fewer gates for 12% more qubits
- More efficient circuits cut the resource cost of quantum algorithms, potentially accelerating quantum applications in chemistry and materials science
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